Feasibility and effects of an eHealth intervention to support patients with a low socioeconomic position during their waiting period preceding cardiac rehabilitation 117 6 scientifically validated methods for behavior change with engaging, user-focused aspects of persuasive technology design (Asbjornsen et al., 2020). Additionally, the intervention integrates recommendations derived from our previously developed IeG (Faber & Al-Dhahir et al., 2023), which served as a foundational resource (see Table 1). Figure 6.1 A visual overview of patient enrollment and study procedures. CR = Cardiac Rehabilitation, CGQ = Certainty and Guidance Questionnaire. The content of the CapriXpress application is divided into concise, manageable units, with a limited number of messages presented per day (Figure 2, 1.1). The interface is designed to be playful, aesthetically pleasing, and simple to understand (Figure 2, 1.2 and 1.3). A “travel bag” feature stores completed messages, giving patients a sense of achievement. When the bag is filled to a certain level, it receives an aesthetic upgrade as a reward (Figure 2, 1.4 and 1.5). The information is primarily conveyed through multimedia formats and is articulated in easily understandable language, adopting a positive tone (Figure 2, 1.6). A push notification is sent if the participant has not engaged with the intervention for two consecutive days. The “help” section provides contact information for research or application-related questions (Figure 2, 1.9).
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